eMagTech 10PCS Thermometer Stickers Self adhesive Colour Change Digital Temperature Display Instant Read for Aquarium Fish Tank Milk Bottles

These thermometer stickers can quickly and accurately test temperature, including water temperature, gas and various solid surfaces, etc. It is also fit for temperature testing of milk bottles, wine bottles, beverages, refrigerators, kettles, and fish tanks. Made of PET material, it is not easy to break, will not fall off, and the temperature is always clearly visible. Easy to use, peel off the adhesive, stick it on the surface of the fish tank that needs to be measured, it can display the correct temperature within 15 seconds. The diameter of the round thermometer is 5cm, the measurable temperature range: 18-34°C (64-97°F). The size of the rectangle thermometer bar is 13x1.7cm, and the measuring temperature range: 10-40°C. You will receive 5pcs round thermometer stickers and 5pcs rectangle temperature stickers, enough for your needs.